Milk-tester



(N0 Model.) .2 sheets-Sheet 1.

F. B. FARGO. MILK TESTER.

No 478,099. Patented July 5, 1892.

ii A

i J l r (No Model.) 2 Sheets-Sheet 2,

P. B. FARGO. MILK TESTER.

No. 478,099. Patented July 5, 1892.

UNITED STATES PATENT OFFICE.

FRANK B. FARGO, OF LAKE MILLS, WISCONSIN. i

MILK-TESTER.

SPECIFICATION forming part of Letters Patent No. 478,099, dated July 5,1892.

Application filed December 4,1891. Serial No. 413,965. (No model.)

To all whom it may concern.-

Be it'known that I, FRANK B. FARGO, of Lake Mills, in the county ofJefferson and State of Wisconsin, have invented a newand usefulImprovement in Milk-Testers, of which the following is a description,reference being bad to the accompanyingdrawings, which are a part ofthis specification.

My invention relates to improvements in the class of milk-testers inwhich the milk is placed in tubes or bottles with small and preferablygraduated necks, and frequently with a small supply of acid, and thetubes are then agitated by mechanism therefor, commonly warmed by hotwater or other heatsupply, for the purpose of separating the butter orbutter-oil from the caseine' and whey to ascertain the amounts andproportions of each in the milk.

The object of my present invention is to improve the apparatus forsupporting and agitating the milk tubes or bottles.

In the drawings, Figurel is an elevation of a complete milk-tester inwhich my improved devices are embodied, the inclosing case being shownin central vertical section. Fig. 2 is a top plan view of the completedevice, the case being removed, exposing the plan of its interior. Fig.3 is a View of the under side of the supporting-table and of themechanism attached thereto. Fig. 4 is a modified form of a disk forsupporting the bottle-holding receptacles. Figs. 5 and 6 are perspectiveviews of two forms ofbottle-holding receptacles.

A is atable of suitable form and size to support the other parts of theapparatus. A cylindrical case B rests on the table. This case isprovided With-a water-tight bottom 0 at a little distance above thetable, on which it rests on a suitable flange, forming an airchamberbetween the table and the bottom from which a smoke and gas flue D leadsat one side of the case upwardly and discharges into the air. AnapertureE through the table permits the heat and heated air from thelamp F to rise directly against the bottom 0 of the case, the smokeescaping through the flue D.

A disk G is fixed on theupper extremity of a revoluble arbor H, havingits bearing in the table and in a stud or hanger I, projecting on thedisk.

forminga water-tight tube K about the shaft H, so that the case may besupplied with water up nearly to the disk, if desired. The

I cover B of the case is removable, and the case is provided with afaucet J for drawing off the water. The shaft H is provided with. apulley on which the belt L runs, which also runs on the larger pulley M,the arbor of which pulley is geared to a hand crank-shaft N, which shaftand the arbor of the pulley M are journaled. in suitable bearingstherefor arranged on the table A. An idle belt-tightening pulley O issecured adjustably to the table and bears against and is adapted fortightening the belt L.

The disk G is provided with peripheral recesses G, in which thereceptacles P are fitted loosely, so as to be readily removabletherefrom, but so as to be held bythe walls of the recesses againstlateral movement. These receptacles P are each provided with arms R,

having hooks thereon adapted to enter apertures therefor in the disk G,whereby the receptacles are suspended from and supported The lugsV,'projecting downwardly from the disk at the inner edges of therecesses G, receive the bearing of the receptacles and prevent theirtilting inwardly when hung on the disks. These receptacles, as shown inFig. 2, are each provided with three vertical compartments, each adaptedto receive and hold therein a bottle S. These bottles are of the form incommon use, being usually provided with the long graduated neck S,desirable in such milk-holding tubes or bottles. These receptacles P aredetachable from the disk G and the bottles S are removable from thereceptacles.

This apparatus is utilized as follows: A supply of water is put in thecase B, preferably already heated, and itis kept warm during the makingof the test by the burning lamp F. The milk to be tested is put in theseveral bottles S, which bottles are placed in the receptacles P, andthe receptacles are secured to the disk G in the case, in the mannerdescribed. The case is then covered and the milk is agitated byrevolving the disk by rotating the shaft N. When the process iscompleted, the milk-receptacles may be removed from the case and thewater can be drawn off through the faucet J.

In the modified form of disk T (shown in Fig. 4) the peripheral recessesTT are sufli Y cientlylarge to receive thereinmodified forms ofreceptacles P, which have four compartments, the recesses T being eachsufficiently long circumferentially to receive therein part of areceptacle, Fig. 5, having two bottles alongside each other. This diskalso is provided with a circle of apertures U about but at a distancefrom its axis, which apertures are each adapted to receive therein. asingle receptacle P" of the form shown in Fig. 6. This disk T is alsoprovided with suitable apertures adjacent to each of the recesses 'I"and U for receiving therein the upright on the disk in the recesses inthe periphery thereof, substantially as described.

2. In an apparatus of the class described for testing milk, a revolubledisk provided with peripheral recesses and with apertures at a distancefrom its axis other than the peripheral recesses, which apertures areadapted to receive therein removable bottle-holding receptaclessuspended on the disk, substantially as described.

3. In an apparatus of the class described for testing milk, a revolubledisk provided with peripheral recesses and hook-receiving apertures, incombination with receptacles adapted to hold milk-test bottles formed tofit detachably in the peripheral recesses in the disks, arms projectingfrom the receptacles, having hooks adapted to en gagethe disks, anddownwardly-projecting lugs on the disk, arranged to receive the bearingof the receptacles and prevent their tilting, substantially asdescribed.

In testimony whereof I aftix my signature in presence of two witnesses.

FRANK B. FARGO.

WVitnesses:

O. F. GREENWOOD, A. W. GREENWOOD.

